Residual Pressure Relief 3 Port Hand Valve – VHS400/500 Series
Caution
Product Description
- Soft-start Valves – Pneumatically Actuated
- Part number including of MS6-DL-½ (Pneumatically Actuated).
- Housing material: Die-cast aluminum.
- Seals material: Nitrile rubber
- Flow rate: 2,600 … 8,700 l/min
- Operating pressure: 4 … 18 bar.
- Corrosion resistance class 2 according to Festo standard 940 070
- Pneumatically actuated soft-start valve for slowly pressurizing and venting pneumatic installations (for use with on-off valves EM1 and EE)
- Optional pressure sensor with display.
- This product conforms with the ISO 1179-1 standard and the ISO 228-1 standard.
Pressure accumulator, MS6 Series
Features
The duration of the pressure build-up is adjusted using the restrictor attached to the valve cap.
The output pressure p2 rises slowly in accordance with the restrictor setting. The main seat opens when the switchthrough pressure is reached.
-Pneumatically actuated soft-start valve for slowly pressurising and venting pneumatic installations (for use with on-off valves EM1 and EE)
-The drives advance slowly and reliably into the initial position
-Sudden and erratic movements are avoided
-Pressure switching approx. 50% of operating pressure
-Adjustable switching time delay
-Optional pressure sensor
-Optional device variant EX4 for use in potentially explosive areas in zones 1, 2, 21 and 22
Specifications
| Size | MS4 | MS6 |
|---|---|---|
| Pneumatic connection 1, 2 Female thread Connecting plate AG... Connecting plate AQ... | G1/8 or G1/4 G1/8, G1/4 or G3/8 NPT1/8, NPT1/4 or NPT3/8 | G1/4, G3/8 or G1/2 G1/4, G3/8, G1/2 or G3/4 NPT1/4, NPT3/8, NPT1/2 or NPT3/4 |
| Design | Piston poppet valve | |
| Type of mounting | Via accessories | |
| In-line installation | ||
| Assembly position | Any | |
| Pressure indicator | Via pressure sensor for displaying output pressure via LCD display and electrical output | |
| Via pressure sensor for displaying output pressure via operational status indicator and electrical output | ||
| Via pressure gauge for displaying output pressure | ||
| Via pressure gauge with red/green scale for displaying output pressure | ||
| G1/4 prepared | ||
| G1/8 prepared | - | |
| Valve function | 2/2-way valve | |
| Exhaust function | Flow control | |
| Type of reset | Mechanical spring | |
| Pilot control mode | Direct | |
| Pilot air supply | External | |
| Direction of flow | Non-reversible | |
Flow rate characteristic values
| Size | MS4 | MS6 | |||
|---|---|---|---|---|---|
| Pneumatic connection | G1/8 | G1/4 | G1/4 | G3/8 | G1/2 |
| Standard nominal flow rate qnN [l/min] | |||||
| In main flow direction 1 > 2 | 1,000 | 2,000 | 2,800 | 5,050 | 6,450 |
| In relief direction 2 > 1 | 1,000 | 2,000 | 2,800 | 5,050 | 6,400 |
| C value [l/s*min] | |||||
| In main flow direction 1 > 2 | 4.6 | 9.6 | 11.22 | 21.05 | 28.97 |
| b value | |||||
| In main flow direction 1 > 2 | 0.5 | 0.45 | 0.54 | 0.48 | 0.39 |
Operating and environmental conditions
| Size | MS4 | MS6 |
|---|---|---|
| Operating pressure [bar] | 4...14 (4...10) | 4...18 (4...10) |
| Operating medium | Compressed air in accordance with ISO 8573-1:2010 [7:4:4] | |
| Inert gases | ||
| Note on operating/pilot medium | Operation with lubricated medium possible (in which case lubricated operation will always be required) | |
| Ambient temperature [°C] | -10...+60 (0...+50) | |
| Temperature of medium [°C] | -10...+60 (0...+50) | |
| Corrosion resistance class CRC | 2 | |
| Food-safe | See supplementary material information | |
| UL certification | cULus recognized (OL) | |